[NETFILTER]: nf_log: move logging stuff to seperate header

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 59 insertions, 0 deletions

diff --git a/include/net/netfilter/nf_log.h b/include/net/netfilter/nf_log.h
new file mode 100644
index 000000000000..f0426e59f229
--- /dev/null
+++ b/include/net/netfilter/nf_log.h
@@ -0,0 +1,59 @@
+#ifndef _NF_LOG_H
+#define _NF_LOG_H
+
+/* those NF_LOG_* defines and struct nf_loginfo are legacy definitios that will
+ * disappear once iptables is replaced with pkttables.  Please DO NOT use them
+ * for any new code! */
+#define NF_LOG_TCPSEQ           0x01    /* Log TCP sequence numbers */
+#define NF_LOG_TCPOPT           0x02    /* Log TCP options */
+#define NF_LOG_IPOPT            0x04    /* Log IP options */
+#define NF_LOG_UID              0x08    /* Log UID owning local socket */
+#define NF_LOG_MASK             0x0f
+
+#define NF_LOG_TYPE_LOG         0x01
+#define NF_LOG_TYPE_ULOG        0x02
+
+struct nf_loginfo {
+        u_int8_t type;
+        union {
+                struct {
+                        u_int32_t copy_len;
+                        u_int16_t group;
+                        u_int16_t qthreshold;
+                } ulog;
+                struct {
+                        u_int8_t level;
+                        u_int8_t logflags;
+                } log;
+        } u;
+};
+
+typedef void nf_logfn(unsigned int pf,
+                      unsigned int hooknum,
+                      const struct sk_buff *skb,
+                      const struct net_device *in,
+                      const struct net_device *out,
+                      const struct nf_loginfo *li,
+                      const char *prefix);
+
+struct nf_logger {
+        struct module   *me;
+        nf_logfn        *logfn;
+        char            *name;
+};
+
+/* Function to register/unregister log function. */
+int nf_log_register(int pf, struct nf_logger *logger);
+void nf_log_unregister(struct nf_logger *logger);
+void nf_log_unregister_pf(int pf);
+
+/* Calls the registered backend logging function */
+void nf_log_packet(int pf,
+                   unsigned int hooknum,
+                   const struct sk_buff *skb,
+                   const struct net_device *in,
+                   const struct net_device *out,
+                   struct nf_loginfo *li,
+                   const char *fmt, ...);
+
+#endif /* _NF_LOG_H */